Submission #953590

#	Time	Username	Problem	Language	Result	Execution time	Memory
953590		SmuggingSpun	Coins (IOI17_coins)	C++14	100 / 100	8 ms	1856 KiB

coins

#include<bits/stdc++.h>
#include "coins.h"
using namespace std;
vector<int>coin_flips(vector<int>b, int c){
	int sum_xor = 0;
	for(int i = 1; i < 64; i++){
		if(b[i] == 1){
			sum_xor ^= i;
		}
	}
	return vector<int>(1, sum_xor ^ c);
}
int find_coin(vector<int>b){
	int ans = 0;
	for(int i = 1; i < 64; i++){
		if(b[i] == 1){
			ans ^= i;
		}
	}
	return ans;
}

• Subtask 1: 10 / 10
• Subtask 2: 15 / 15
• Subtask 3: 10 / 10
• Subtask 4: 15 / 15
• Subtask 5: 50 / 50